This section provides recommendations and guidelines for designing your VDI environment.
VMware Horizon 7 topologies
DTCP using VCF on VxRail and VMC on AWS allows for many new and unique options when designing a VMware Horizon 7 deployment. The following is a non-exhaustive list of the use cases and topologies:
Consider the information in the following tables when designing and deploying VMware Horizon 7 on VMC on AWS and VCF on VxRail hybrid cloud:
VCF - Management Nodes
VCF - Compute Nodes (per Cluster)
VCF – Maximum Workload Domains (including mgmt)
Horizon – Pods in a Cloud Pod Architecture federation
Horizon – Active Connections per pod
Horizon - Maximum Connection Servers per pod
Horizon – Connections per Connection Server instance
4,000 (2,000 recommended)
vCenter – Hosts per vSphere cluster
vCenter - VMs per Cluster (vSAN)
VMC on AWS – SDDCs per Organization
2 (soft limit)
VMC on AWS – Hosts per Cluster
VMC on AWS – Clusters per SDDC
Maximum VMs per SDDC
VMs per host
VMware Horizon - Number of Desktops per SDDC
There are several platform options to choose from for your on-premises SDDC environment. Consider the following when designing your environment:
Dell EMC Ready Architectures for VDI validation test results suggest that you can use CPU oversubscription to effectively size VDI user density. This reference architecture makes recommendations in the hardware section.
Observe the following best practices for memory allocation and configuration:
Adhere to the following best practices for sizing and configuring solutions requiring graphics accelerators:
By default, the VMware vCenter Server is internal to the VxRail cluster. As part of the deployment of VCF, the VMware vCenter server is made "external" to the VxRail cluster that will be used for the VCF management domain, meaning that VxRail Manager will no longer manage it. VCF will life cycle manage the VMware vCenter Server Appliance and work with VxRail Manager within each VxRail cluster to upgrade and manage these components.
Consider these general best practices when sizing your deployment:
RAID-5 (3+1) (Erasure coding)
RAID-6 (4+2) (Erasure coding)
For more information about multisite design considerations for Horizon, see the VMware Workspace ONE and VMware Horizon 7 Enterprise Edition On-premises Reference Architecture.
Test results and density recommendations
For current VxRail test results and density recommendations, see the Dell EMC Ready Architectures for VDI Designs for VMware Horizon on VxRail and vSAN Ready Nodes Design Guide.
As part of this reference architecture, we performed some validation and light testing in the VDI engineering laboratories. VMware Horizon virtual desktop VMs were deployed into both the on-premises and VMC on AWS SDDCs to compare the user experience between the two. We ran various applications, including Microsoft Word and a YouTube video running within Google Chrome.
We ran the VMware Horizon performance tracker to capture network bandwidth and frames per second. Both VMs delivered an acceptable user experience and there were negligible differences between the two for this use case. The following figure shows the VMware Horizon performance tracker data.